1&period; IntroductionUltrasonic level sensor use the ultrasonic to measure the medium with non-contact type and no wear&period; The medium can be transparency or colorful objects&comma; metal or nonmetallic objects&comma; solid&comma; liquid or powder&period; The environment around won't effect the measure of ultrasonic level sensor&comma; such as smoke&comma; dust or rainy day&comma; etc&period; Ultrasonic water level sensor transmitter is a new generation product with our own property and we've been developing them for many years&period;2&period; Features1&rpar;High resolution2&rpar;Short response time3&rpar;To finish parameter setting via RS232&sol;4854&rpar;Various outputs&colon; Switch output&comma; analog output&comma; RS232&sol;485